All files / misc common-tests.js

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/* eslint-env jest */
 
export default (lib, description = 'index') => {
  const {
    simple,
    simpleObject,
    keyValue,
    factory,
  } = lib
 
  const Todo = id => ({ id, some: `information ${id}` })
 
  const subState = {
    data: [
      [1, Todo(1)],
      [20, Todo(20)],
      [2, Todo(2)],
    ],
    initialized: true,
  }
 
  describe(description, () => {
    const test = (reducer, state) => {
      it('should prefix actions', () => expect(reducer.add(Todo(2))).toMatchSnapshot())
      it('should prefix selectors', () => expect(reducer.get()(state)).toMatchSnapshot())
      it('should prefix reducer', () => expect(reducer(subState, reducer.remove(20))).toMatchSnapshot())
    }
 
    describe('with name and prefix', () => {
      test(
        factory({ name: 'todos', prefix: 'ui' }),
        { todos: subState },
      )
    })
 
    describe('with name and key', () => {
      it('should use custom key', () => {
        const reducer = factory({ name: 'todos', key: 'some' })
        const state = reducer(undefined, reducer.set([Todo(7), Todo(11)]))
 
        expect(reducer.getKeys({ todos: state })).toMatchSnapshot()
      })
    })
 
    describe('with name and empty prefix', () => {
      test(
        factory({ name: 'todos' }),
        { todos: subState },
      )
    })
 
    describe('with path', () => {
      test(
        factory({ path: 'api', name: 'todos' }),
        {
          api: {
            todos: subState,
          },
        },
      )
    })
 
    describe('without path', () => {
      test(factory({ name: 'todos' }), { todos: subState })
    })
 
    describe('with middleware', () => {
      const middleware = middlewareName => key => prefix => name => defaultData => ctx => ({
        ...ctx,
        state: {
          ...ctx.state,
          [middlewareName]: true,
          key,
          prefix,
          name,
          defaultData,
          prevCtx: ctx,
        },
        action: {
          ...ctx.action,
          [middlewareName]: true,
        },
      })
 
      test(
        factory({
          pre: [middleware('pre1')],
          post: [middleware('post1')],
        })({ name: 'todos' }),
        { todos: subState },
      )
    })
 
    describe('type validation', () => {
      it('should be on error [undefined]', () => {
        let error
 
        try {
          factory()
        } catch (ex) {
          error = ex
        }
 
        expect(error).toMatchSnapshot()
      })
 
      it('should be on error [not a middleware object, nor an option object]', () => {
        let error
 
        try {
          factory({ oups: 'unknown' })
        } catch (ex) {
          error = ex
        }
 
        expect(error).toMatchSnapshot()
      })
 
      it('should instanciate a reducer (options as object)', () => {
        expect(factory({ name: 'aa' }).krfType).toMatchSnapshot()
      })
 
      it('should instanciate a reducer (options as string -name-)', () => {
        expect(factory('a reducer').krfType).toMatchSnapshot()
      })
    })
 
    describe('named factory', () => {
      it('should instanciate a simple reducer', () => {
        expect(simple({ name: 'a simple' }).krfType).toMatchSnapshot()
      })
 
      it('should instanciate a keyValue reducer (specified)', () => {
        expect(keyValue({ name: 'a keyValue' }).krfType).toMatchSnapshot()
      })
 
      it('should instanciate a keyValue reducer (default)', () => {
        expect(factory({ name: 'a keyValue' }).krfType).toMatchSnapshot()
      })
    })
 
    describe('extended selectors', () => {
      it('should extends isInitialized selector on simple', () => {
        expect(simple({ name: 'o' }).isInitialized({ o: '' })).toMatchSnapshot()
      })
      it('should extends get selector on simple', () => {
        expect(simple({ name: 'o', defaultData: {} }).get()({ o: 'DATA' })).toMatchSnapshot()
      })
    })
 
    describe('action type factories', () => {
      it('should export action type factories', () => {
        expect(simple({ name: 'a simple' }).SET).toMatchSnapshot()
      })
    })
 
    describe('suffix of simple factory', () => {
      it('should make a simple object init to empty', () => {
        expect(simple({ name: 'object' })()).toMatchSnapshot()
        expect(simple({ name: 'simple object', defaultData: {} })()).toMatchSnapshot()
        expect(simple.object({ name: 'simple object' })()).toMatchSnapshot()
        expect(factory({ name: 'simple object', type: 'simple.object' })()).toMatchSnapshot()
      })
      it('should make a simple boolean init to false', () => {
        expect(simple.bool({ name: 'bool' })()).toMatchSnapshot()
        expect(simple({ name: 'simple bool', defaultData: false })()).toMatchSnapshot()
        expect(factory({ name: 'simple bool', type: 'simple.bool' })()).toMatchSnapshot()
      })
      it('should make a simple string init to blank', () => {
        expect(simple.string({ name: 'string' })()).toMatchSnapshot()
        expect(simple({ name: 'simple string', defaultData: '' })()).toMatchSnapshot()
        expect(factory({ name: 'simple string', type: 'simple.string' })()).toMatchSnapshot()
      })
      it('should make a simple array init to empty', () => {
        expect(simple.array({ name: 'array' })()).toMatchSnapshot()
        expect(simple({ name: 'simple array', defaultData: [] })()).toMatchSnapshot()
        expect(factory({ name: 'simple array', type: 'simple.array' })()).toMatchSnapshot()
      })
      it('should make a simple object init to empty when subtype is unknow', () => {
        expect(factory({ name: 'unknow', type: 'simple.unknow' })()).toMatchSnapshot()
      })
    })
 
    describe('suffix of simpleObject factory', () => {
      it('should make a simple object init to empty', () => {
        expect(simpleObject({ name: 'object' })()).toMatchSnapshot()
      })
      it('should make a simple string init to blank', () => {
        expect(simpleObject({ name: 'string', defaultData: '' })()).toMatchSnapshot()
      })
    })
 
    describe('default data', () => {
      it('should have default inner data', () => {
        expect({
          bool: simple.bool({ name: 'bool' })(),
          array: simple.array({ name: 'array' })(),
          object: simple.object({ name: 'object' })(),
          string: simple.string({ name: 'string' })(),
        }).toMatchSnapshot()
      })
 
      it('should override inner default data', () => {
        expect({
          bool: simple.bool({ name: 'bool', defaultData: true })(),
          array: simple.array({ name: 'array', defaultData: ['default'] })(),
          object: simple.object({ name: 'object', defaultData: { object: true } })(),
          string: simple.string({ name: 'string', defaultData: 'string' })(),
        }).toMatchSnapshot()
      })
    })
  })
}